![]() Reader Tim has suggested one such application and recounted his own experiences with it. I’ve never personally used any, which is why they’re not in the text. Note : a fourth option not explored in this article is software-based solutions. It’s not perfect by any stretch, but the licensing terms are favorable for most and it gets the job done.Īll of that said, it is entirely possible to configure Hyper-V USB passthrough inside a Hyper-V guest, even Client Hyper-V. For most everyone else, I’d say to turn your eye to a type 2 hypervisor. If you’re using the emulators in Visual Studio, you’re sort of forced into it. If true Hyper-V USB passthrough is a requirement for whatever you’ve got in mind, then Hyper-V is a poor solution. If you want more information, Microsoft has published a thorough article regarding passing through hardware on the 2016 platform that describes some of the challenges and possibilities, including configuring Hyper-V USB passthrough. But, technological feasibility is besides the point. In theory, it sounds like something that could be done. Could there be a way for a type 1 hypervisor to assign a USB port to a specific guest by doing the same thing that a type 2 does? I don’t know. Hyper-V can’t do this for Hyper-V USB passthrough because one operating system instance locking a USB port from all other operating system instances is just not how type 1 virtualization works. A type 2 hypervisor is essentially an application shim that is pretending to provide a root hardware device, which is fine because it doesn’t require the same degree of isolation as a type 1 hypervisor. They are kernels firmly entrenched within partitions. So, the same concepts apply to Hyper-V USB passthrough configuration. If you’ve ever used a type 2 hypervisor in this way, you’ll notice that they explicitly tell you that the USB device can be attached to the parent or a guest - there’s no sharing or divvying up resource access or anything of the sort. Applications have the ability to exclusively capture a USB port to prevent other applications from using it if they like this is why it’s so easily done in a type 2 hypervisor. In a type 2 hypervisor, the management operating system is installed directly to the hardware and the hypervisor is just another application that runs within it. The very sharp distinction to be made here is that Hyper-V is a type 1 hypervisor whereas the products that provide simple USB passthrough are type 2 hypervisors. The complaint typically accompanies a negative comparison to applications such as VMware Workstation and Oracle VirtualBox, which can perform USB passthrough. I often read complaints about the lack of Hyper-V USB passthrough for USB devices. This will be the USB mass storage device used for Hyper-V USB passthrough.
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